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Area Codes 773 & 872
Telephone Central Office
Building Pictures
The following are representative examples of telephone central office buildings in Area Codes 773 & 872 (Outer Chicago, Illinois).
Click on the pictures below for a larger version.
Chicago Zone 02
"Edgewater"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILEDDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 271, 275, 293, 334, 506, 561, 728, 769, 784, 878, 907, 989Notes:
Source: GSV
Chicago Zone 02
"Irving"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILIRDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 267, 279, 463, 478, 509, 539, 583, 588, 604, 730, 866, 961Notes:
Source: GSV
Chicago Zone 02
"Rogers Park"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILRPDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(773) 262, 274, 338, 381, 465, 508, 743, 761, 764, 973Notes:
Source: GSV
Chicago Zone 03
"KIildare"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILKIDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 202, 205, 282-3, 286, 427, 482, 545, 685, 725, 736, 777, 794Notes:
Source: GSV
Chicago Zone 03
"Newcastle"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILNEDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(708) 457, 667, 867
(773) 467, 594, 631, 763, 774-5, 792, 990
(847) 588, 600, 647Notes:
Serves parts of Kildare. Source: GSV
Chicago Zone 04
"Humboldt"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILHBDS1Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(773) 227, 235, 252, 276, 278, 292, 342, 384, 394-5, 486, 489, 645, 772, 782, 862Notes:
Source: GSV
Chicago Zone 04
"Lakeview"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILLWDS0
CHCGILLWDS1Switch Type:
DS0: Nokia/Alcatel/Lucent 5ESS
DS1: Nokia/Alcatel/Lucent 5ESSPrefixes Served:
DS0: (773) 244, 296, 325, 388, 404, 477, 528-9, 665, 755, 832, 871, 929
DS1: (773) 248, 281, 327, 348, 472, 525, 549, 868, 880, 883, 935, 975Notes:
Source: GSV
Chicago Zone 05
"Austin"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILAURP0Switch Type:
Ribbon/Genband/Nortel MG9000 remotePrefixes Served:
(773) 261, 287, 378-9, 473, 626, 854, 921Notes:
This was a 1AESS until 2013. Source: GSV
Chicago Zone 05
"Merrimac"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILMEDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 237, 385, 479, 622, 637, 745, 804, 836, 889Notes:
Source: GSV
Chicago Zone 06
"Kedzie"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILKEDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 265, 533, 638, 722, 826Notes:
Source: GSV
Chicago Zone 06
"Lafayette"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILLADS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(773) 247, 254, 376, 523, 534-5, 553, 579, 650, 801, 843, 847, 869, 890, 927Notes:
Source: GSV
Chicago Zone 06
"Lawndale"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILLDDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 257, 277, 521-2, 542, 762Notes:
Source: GSV
Chicago Zone 07
"Dorchester"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILDODS0Switch Type:
Nokia/Siemens/Stromberg Carlson DCO DE5 RCUPrefixes Served:
(773) 241, 256, 288, 324, 363, 493, 643, 667, 684, 702, 752-3, 795, 926, 947, 955
(872) 247Notes:
Source: GSV
Chicago Zone 07
"Oakland"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILOKDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(773) 268, 285, 373, 451, 536, 538, 548, 624, 924Notes:
Source: GSV
Chicago Zone 07
"Stewart"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILSTDS0Switch Type:
Nokia/Alcatel/Lucent 5ESSPrefixes Served:
(773) 224, 361, 371, 483, 487, 602, 834, 873, 892Notes:
Source: GSV
Chicago Zone 08
"Portsmouth"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILPMDS0Switch Type:
Ribbon/Genband/Nortel DMS-100Prefixes Served:
(773) 284, 581-2, 585, 735, 767, 838, 884Notes:
Source: GSV
Chicago Zone 08
"Prospect"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILPRDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(773) 434, 436, 471, 476, 737, 776, 778, 863, 918, 925Notes:
Source: GSV
Chicago Zone 09
"Mitchell"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILMHRS0Switch Type:
Nokia/Alcatel/Lucent 5ESS RemotePrefixes Served:
(773) 646Notes:
Source: GSV
Chicago Zone 09
"South Chicago"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILSCDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(773) 221, 356, 374-5, 721, 731, 734, 768, 933, 978Notes:
Source: GSV
Chicago Zone 10
"Beverly"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILBEDS0Switch Type:
Nokia/Siemens/Stromberg Carlson DCO DE5 RCUPrefixes Served:
(773) 233, 238-9, 298, 429, 445, 779, 881, 980Notes:
Source: GSV
Chicago Zone 10
"Pullman"
Listing Updated:
April 2020Operating Company:
at&t/SBC/Ameritech/Illinois BellCLLI:
CHCGILPUDS0Switch Type:
Nokia/Siemens EWSDPrefixes Served:
(773) 260, 264, 291, 468, 546, 568, 660, 785, 821, 928, 995Notes:
Source: GSV
Visit other Illinois Area Codes: 217 309 312 618 630 708 773 815 847
Visit nearby regions: Indiana Iowa Kentucky Missouri Wisconsin
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Copyright 2020 Telephone Central Office Building
Pictures |